Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(A) Representative snapshot of uncrosslinked and cross-linked collagen matrices thickness in a dry state and in the presence of water and of sulfuric acid 1% (v/v). (B) Swelling degree of uncrosslinked and cross-linked collagen matrices thickness in a dry state and in the presence of water and of 1–5% (v/v) H2SO4.
